Sorry but your question makes no sense. If you are asking where is the hydraulic clutch reservoir, then if it has one, it is located somewhere near the master cylinder, usually mounted on the firewall.
Clutch master cylinder reservoir.
Drivers side, near the brake master cylinder, Look for a cap that screws on.
In my 20 plus years of working professionally on cars, and for Ford Motor Company, I have never heard of a "clutch gasket." I have absolutely no idea what you are asking about. But if you want to see some funny blank stares, you could go to the parts dept of your nearest Ford dealership and ask for a clutch gasket. Are you talking about a seal in the hydraulic clutch system? If so, then you don't need to worry about finding a seal, since hydraulic clutch componets are serviced as assemblies. In other words, if you have a leaking master cylinder, replace the master cylinder. If you have a leaking slave cylinder, replace that.
its located on the throttle body
Clutch switches are usually located at the top of the clutch pedal.
in the fuel tank
it is located inside the fuel tank
depends on the transmission. auto = bad trans. manual = bad clutch
follow the coolant hose that goes under the distributor.
On all engines the head gasket is located between the head[s] and the top surface of the engine block.
Coolant is getting into the combustion chamber. Sounds like a head gasket problem.
Roughly $800.00 parts & labor. This figure could easily double if done by a dealer.